Joseph b



(No Model.)

Y J. R. BROWN.

AUTOMATIC FIRE EXTINGUISHBR.

Patented May 22,1883.

WIK/@5535' 7N VENTURI:

.Else/: Bra um 1 UNITED STATES V PATENT OFFICE.

JOSEPH It. BROWN, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE AUTOMATIC FIRE EXTINGUISHER COMPANY, OF NEW YORK, N. Y.

AUTOMATIC FIRE-EXTINGUISHER.

SPECIFICATION forming part of Letters :Patent No. 278,215, dated May 22,1883. l Application filed February 21, 1888. (No model.)

To all whom t't may concern Beit known that I, JOSEPH It. BROWN, of Bridgeport, in the countyofFairtield and State of Connecticut, have invented a new and useful Improvement in Automatic Fire Extin guishers; and I hereby declare the following` to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part ofthis specification.

This invention has reference to the class of automatic lire-extinguishers in which the valve or seal by which the outlet is closed is constructed to move a short distance from the ontlet and act a-sa deliector to the water 4discharged by the outlet, and is au. improvement on the automatic fire extinguisher for which a patent was granted to me on the 16th day of August, 1881, and which is numbered 245,916.

The invention consists in the peculiar con' struction of a cap secured by solder to a rim, which is separated from the extinguisher proper by anannular ring formed of a poor conductor ot' heat.

It further consists in providing any kind of automatic iire extinguisher with a small outlet closed bya simple device, which can be removed andthe system tested, either to prove that the valves are tight or that the pipes are open to deliver water when required.

Another part of my invention consists in placing a soft-metal ring into the bore'oi' the inlet in connection with a conical valve, so

that the pressure of the water will force the ring between the valve and the sides of the inlet and make a water-tightjoint, as will be more fully set forth hereinafter.

Figure I is a view ofmy improved automatic freextinguisher- Fig. 2is a sectional view of the same shown in the position when sealed. Fig.V 3 is a sectional view of my improved automatic tire extinguisher shown in the position when in operation. Fig. 4I is a view ofthe l detlector-disk.

lIn the drawings, a is the screw-threaded nipple by which the extinguisher is secured to the usual fittings and connected with the system of pipes extending through the building to be protected.

b is the body of the device. y c is a ring made of any material or composi- 4cured to the same.

tion that is a slow conductorot' heat, such as caoutchouc, cork, or other material.

d is a ring forced over the ring o. To this ring d the cap e is secured by a solder fusible ata low temperature. By this interposition of the non-conducting ringo between the body ofthe extinguisher and the ring d, to which the cap e is secured by solder, the heat is allowed to act more readily on the solder, 4and thejoint will be more promptly released on the breaking out of a iire.

fis a ring made ot' some soft metal-such as lead, bismuth, or other soft metal-or composition ot' metals. It is itted into the bore of theinlet and rests on the conical valveg. The pressure ofthe water on the ringfforces the same tightly between the wall ot the inlet and the conical valve g, and thus insures a 'tightjoin by which the water is prevented from entering the interior ot the device, and by its capacity to absorb 'heat prevents the prompt melting of the solder.

It is the valve-stem, the upper part ot' which is made'tapering, so as to fit into the tapering hole in the bridge t', and give a firm support to the valve stem and othe deiiector 7s, se The deiiector 7a may be directly secured by solder into therecess in which it is placed; or it may be made to lit loosely in the'same.

l is a screw secured in a tapped hole in the cap o, as shown in Figs. l and 2, when the cap is used, or in the deiiector 7c when the detlector is directly secured by solder; but it or some equivalent device may be secured in any other partof the-device, the object being to open some part of the automat-ic reextinguisher and ascertain whether the interior and the water-supply are in the required condition.

m m are cavities made in the detlector I: for the purpose of breaking up the discharged water into spray and dispersing it over a large area.

This construction of automatic fire -extinguisher is very sensitive to the action of heat, as no water comes sufficiently near the soldered joint to eect the prompt melting ofthe same.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. The combination, with the extinguisher- IOO head provided with the nipple ai, of the conical valve g, and the annular ringf, made of soft material and adapted to make a watertight joint, as described.

2. The combination, with the body b, of the ring c, which is a'poor conductor ot heat, the ring d., and the cap e, arranged to facilitate the melting,` of the solder7 as described.

3. The combination, with an automatic tireextinguisher, of a test-tap constructed to open a small outlet, so as to ascertain the condition ot' the device, as described.

4. The combination, with an automatic reextinguisher-,of the screw Z,eo11strncted to open or close an outlet, so as to ascertain the condition of the interior, as described.V

5. An automatic lireextinguisher provided JOSEPH R. BROWN.

Witnesses:

Monats B. BEARDSLEY, CHARLES E. WILMoT. 

